Did you know? Time since earliest wheeled vehicles (4,000 y) is 50 x Time since introduction of the first mass-produced helicopter (Sikorsky R-4) (80 y)
Length of the Starship `Discovery` in the Star Trek series of that name (683 m)
/fact/length-of-the-starship-discovery-in-the-star-trek-series-of-that-name
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If this was a standard unit ...